TABLE 3.

Variance component estimates and intraclass correlations for minutes of MVPA as a function of the days and waves included in the analysis and whether wave was modeled or ignored. All values are adjusted for ethnicity.

				Component of Variance				School			Wave
Data	Wave	Days	N	School	Wave	Girl	Total	ICC	LCB	UCB	ICC	LCB	UCB
All waves	Modeled	All days	1603	0.76	6.21	122	129	0.006	-0.011	0.041	0.048	0.019	0.093
		Weekdays	1603	1.97	7.02	150	159	0.012	-0.006	0.051	0.044	0.016	0.088
		Weekends	1603	0.44	6.30	184	191	0.002	-0.011	0.030	0.033	0.007	0.073
		Thursday through Sunday	1232	0.00	5.21	128	133	0.000	-0.016	0.033	0.039	0.006	0.089
		Monday	1401	0.00	17.57	193	210	0.000	-0.021	0.043	0.084	0.044	0.142
		Tuesday	1024	9.26	2.66	303	315	0.029	0.005	0.079	0.008	-0.023	0.056
		Wednesday	1151	6.71	6.89	222	236	0.028	0.004	0.080	0.029	-0.003	0.079
		Thursday	1324	1.72	14.83	228	244	0.007	-0.013	0.050	0.061	0.025	0.115
		Friday	1512	2.10	9.67	253	265	0.008	-0.008	0.042	0.037	0.009	0.079
		Saturday	1603	2.19	8.30	309	320	0.007	-0.007	0.036	0.026	0.002	0.064
		Sunday	1603	0.00	3.64	193	197	0.000	-0.011	0.022	0.018	-0.004	0.054
	Ignored	All days	1603	3.51		125	128	0.027	0.010	0.064
		Weekdays	1603	5.00		154	159	0.032	0.012	0.071
		Weekends	1603	2.62		188	190	0.014	0.001	0.041
		Thursday through Sunday	1232	0.62		131	132	0.005	-0.008	0.031
		Monday	1401	4.13		205	209	0.020	0.003	0.054
		Tuesday	1024	11.31		304	315	0.036	0.010	0.087
		Wednesday	1151	11.06		225	236	0.047	0.019	0.102
		Thursday	1324	8.74		235	244	0.036	0.013	0.081
		Friday	1512	5.89		258	264	0.022	0.006	0.056
		Saturday	1603	5.01		315	320	0.016	0.002	0.044
		Sunday	1603	0.38		196	197	0.002	-0.007	0.021
Wave 1	Not applicable	All days	837	6.02		109	115	0.052	0.019	0.118
		Weekdays	837	8.49		126	135	0.063	0.026	0.135
		Weekends	837	3.89		176	180	0.022	-0.002	0.069
		Thursday through Sunday	685	0.36		119	119	0.003	-0.018	0.045
		Monday	714	12.41		143	155	0.080	0.035	0.164
		Tuesday	497	24.42		240	265	0.092	0.035	0.195
		Wednesday	615	19.13		187	206	0.093	0.041	0.189
		Thursday	727	9.81		215	225	0.044	0.010	0.109
		Friday	795	12.75		245	258	0.049	0.016	0.115
		Saturday	837	11.91		292	304	0.039	0.010	0.097
		Sunday	837	0.00		186	186	0.000	-0.016	0.033

MVPA, moderate to vigorous physical activity; ICC, intraclass correlation; LCB, lower 95% confidence bound; UCB, upper 95% confidence bound.